we asked senator dick durbin to review sobek's documents. >> it's just plain fraud, and your whistleblower brought it to light. and these students sucked in by the ad sign up for courses that lead to nowhere. >> reporter: sarah fisher feels duped. >> $24,000 in the hole for a job i can't use. >> reporter: sobek's claims got a boost by a federal judge. she recommends the case move forward in federal court. mark greenblat, abc news, new york. >> a lot of questions about that situation too. when you consider that their outstanding student loan debt in this country is $1 trillion, buyer beware is what you should go into. look at all the online programs and for-profit colleges with a a real skeptical eye about what you're getting, what it's worth when you graduate. a big deal to a lot of folks. >>> still to come, a deep, dangerous rescue. >> how some divers pulled off a tricky underwater operation 100 feet under the sea. it's all coming up on "world news now." >> announcer: "world news now" continues after this from our abc stations. continues after this from our abc stations. >>> welcome back,